How: Last month, a US Coast Guard ship from South Padre Island came across an illegal, five-mile long gillnet full of dead sharks 17 miles north of the US-Mexico border. Among the casualties were 225 blacktip, 109 bonnethead, and 11 bull sharks. No arrests were made since the boat that set the net was not found.

The Story: “Gill nets indiscriminately kill any fish or marine mammal it snares across miles of ocean, often leaving much of the catch spoiled by the time it is hauled in,” said Coast Guard Commander Daniel Deptula. Because of their destructive impact on fish, turtles and marine mammals, gillnets have been banned in Texas state waters since 1981; however, the Coast Guard recovered 49 miles of them in 2012 and the numbers are on the rise. The Texas Parks and Wildlife Department reports that incidents of pirate fishing with gillnets off the coast have doubled since 2011. “The seizures are far past any other year in my 16-year career,” said Sgt. James Dunks said.

The Coast Guard reports that the illegal nets come from Mexican fisherman crossing into the US’s Exclusive Economic Zone to fish because the Mexican fish stocks are so depleted. “Well you get too many people fishing for the same thing, they’re not catching as much, so they’re going to search new territory to try to find more fish,” Dunks said. The growing fear is that pirate fishing by gillnets will cause our Gulf of Mexico fish stocks to resemble those of our neighbor to the south. The Coast Guard believes that the sharks were destined to be finned, a practice where only the fins are cut off the fish to be sold while the rest of the carcass is tossed back into the sea.

What We Can Do: A reliable system of seafood traceability would help consumers to avoid pirate fish and put pressure on fishermen and fishing companies worldwide to supply legal, sustainable seafood for US tables. Illegal, Unreported, and Unregulated fishing (IUU) doesn’t just happen in remote corners of the Pacific; it happens here at home and affects YOUR fish. For now, support local fishermen that are involved in positive fishing practices by doing your homework and asking questions about your favorite seafood.

UPDATE: In a separate incident, a Mexican fishing boat captain has just plead guilty to charges of failing to “heave to” after ramming a US Coast Guard ship that caught the boat fishing illegally in Texas waters; the captain performed the maneuvers in an effort to flee and escape prosecution.